Re: [PATCH] USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet

From: Johan Hovold
Date: Mon Apr 12 2021 - 08:47:55 EST


On Mon, Apr 12, 2021 at 08:37:52PM +0800, Kai-Heng Feng wrote:
> This is another branded 8153 device that doesn't work well with LPM
> enabled:
> [ 400.597506] r8152 5-1.1:1.0 enx482ae3a2a6f0: Tx status -71
>
> So disable LPM to resolve the issue.
> BugLink: https://bugs.launchpad.net/bugs/1922651
>
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> ---
> drivers/usb/core/quirks.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
> index 76ac5d6555ae..dfedb51cf832 100644
> --- a/drivers/usb/core/quirks.c
> +++ b/drivers/usb/core/quirks.c
> @@ -434,6 +434,9 @@ static const struct usb_device_id usb_quirk_list[] = {
> { USB_DEVICE(0x1532, 0x0116), .driver_info =
> USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
>
> + /* Lenovo ThinkPad USB-C Dock Gen2 Ethernet (RTL8153 GigE) */
> + { USB_DEVICE(0x17ef, 0xa387), .driver_info = USB_QUIRK_NO_LPM },
> +
> /* Lenovo ThinkCenter A630Z TI024Gen3 usb-audio */
> { USB_DEVICE(0x17ef, 0xa012), .driver_info =
> USB_QUIRK_DISCONNECT_SUSPEND },

Please keep the entries sorted by VID/PID.

Johan